Review on Rocketek Aluminum iMac Hub Adapter with USB-C Data Port, 3-Port USB 3.0 Hub, 2 USB 3.0 Port, SD/Micro SD Card Reader Combo USB 3.0 Clamp Hub Pro - Compatible with 2017 iMac and iMac Pro by Daniel Delgado

This is required if you have an iMac that goes with this device. The fact that it has a USB Type-C connector is amazing! I truly believe this should be a must have for any iMac to go with it. I've already told three friends about it and they said it changed their lives. The price is perfect and the product is the BEST! I looked at a ton of options, but in the end all I needed was a couple of USB ports, a USB-C port, and an SD card slot. That's great! Easy to install and seriously I can't even do it, I tried! This is an amazing product!